mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-20 19:23:57 +08:00
d2912cb15b
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (C) 2013-2014 Linaro Ltd.
|
|
* Author: Jassi Brar <jassisinghbrar@gmail.com>
|
|
*/
|
|
|
|
#ifndef __MAILBOX_CLIENT_H
|
|
#define __MAILBOX_CLIENT_H
|
|
|
|
#include <linux/of.h>
|
|
#include <linux/device.h>
|
|
|
|
struct mbox_chan;
|
|
|
|
/**
|
|
* struct mbox_client - User of a mailbox
|
|
* @dev: The client device
|
|
* @tx_block: If the mbox_send_message should block until data is
|
|
* transmitted.
|
|
* @tx_tout: Max block period in ms before TX is assumed failure
|
|
* @knows_txdone: If the client could run the TX state machine. Usually
|
|
* if the client receives some ACK packet for transmission.
|
|
* Unused if the controller already has TX_Done/RTR IRQ.
|
|
* @rx_callback: Atomic callback to provide client the data received
|
|
* @tx_prepare: Atomic callback to ask client to prepare the payload
|
|
* before initiating the transmission if required.
|
|
* @tx_done: Atomic callback to tell client of data transmission
|
|
*/
|
|
struct mbox_client {
|
|
struct device *dev;
|
|
bool tx_block;
|
|
unsigned long tx_tout;
|
|
bool knows_txdone;
|
|
|
|
void (*rx_callback)(struct mbox_client *cl, void *mssg);
|
|
void (*tx_prepare)(struct mbox_client *cl, void *mssg);
|
|
void (*tx_done)(struct mbox_client *cl, void *mssg, int r);
|
|
};
|
|
|
|
struct mbox_chan *mbox_request_channel_byname(struct mbox_client *cl,
|
|
const char *name);
|
|
struct mbox_chan *mbox_request_channel(struct mbox_client *cl, int index);
|
|
int mbox_send_message(struct mbox_chan *chan, void *mssg);
|
|
int mbox_flush(struct mbox_chan *chan, unsigned long timeout);
|
|
void mbox_client_txdone(struct mbox_chan *chan, int r); /* atomic */
|
|
bool mbox_client_peek_data(struct mbox_chan *chan); /* atomic */
|
|
void mbox_free_channel(struct mbox_chan *chan); /* may sleep */
|
|
|
|
#endif /* __MAILBOX_CLIENT_H */
|